FRICTIONAL RESISTANCE REDUCING DEVICE, SHIP WITH SAME, AND METHOD FOR REDUCING FRICTIONAL RESISTANCE OF SHIP

摘要

The frictional resistance reducing apparatus comprises a chamber 20 provided at a draft portion of a hull and having a plurality of ejection holes 22 for ejecting air from a position different from each other in the height direction of the hull, A supply pipe 12 for supplying air to the inner space Si of the chamber 20 and a supply pipe 12 for supplying a part of the air supplied into the chamber 20 from the supply pipe 12 to the discharge hole 22, And a distributor (30). The plurality of distributors 30 distribute the air to the ejection holes 32 corresponding to the distributor 30 so that the flow rate of the air ejected from the plurality of ejection holes 32 is equalized among the plurality of ejection holes 32 And a flow control unit 32 for controlling the flow rate of the fluid.